But you don't have to sleep around the office. How about date one cute secretary and go steady ^^; But you are right, no one wants to be labeled the slut and the reputation would follow you around and ruin your professional reputation. I've seen too many office dramas where one guy screws all the women, they end up feeling like hos for fucking the pimp and he is exposed for unpleasant person he is.. However much men boast about how many people they've slept with, not one likes a man ho really.
And for the women there often seems to be this confusing duality where half the time he is a 'self-empowered' and adored temptress who is in control and knows what she wants and the other half of the time the same woman is scorned. It's a difficult one eh.
[video=youtube;CSE_S8WXQrI]http://www.youtube.com/watch?v=CSE_S8WXQrI[/video]
Lahada you seem like a nice person with a good set of morals. I say go for it. And if you, being a nice girl, think dating your coworker is 'wrong' I say give it a go ^^. My first ever sort-of-one-night-stand turned into my first (and hopefully last) relationship, even though some may think me slutty for it.
You have a good head on your shoulders, and I get the feeling you have a good heart, too. If your boss knows, why not? Just don't go ito it thinking yo will break up a month later and have to face the awkwardness in the office for the rest of your employment.